Exerciser



FIG. 1 is a top, left, front perspective view of an exerciser showing my design therefore;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the opposite being an identical mirror image;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view of a first embodiment thereof; and,

FIG. 7 is a bottom plan view of a second embodiment thereof. 

The ornamental design for an exerciser, as shown and described. 